"This is an E Ink display HAT for Raspberry Pi with integrated controller and communication via SPI interface.
Benefits including extremely low power consumption, wide viewing angle and high effectiveness in sunlight make it an ideal choice for many different applications.
FeaturesNo background illumination, displays last content for a long time after switch-offUltra-low power consumption, power is basically only needed to refresh4 buttons on boardCompatible with Raspberry Pi 2B/3B/Zero/Zero W/WHSPI interface for connecting to other controller boards such as Raspberry/Arduino/Nucleo etc.
Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)Technical dataOperating voltage: 3.3 VInterface: 3-wire SPI, 4-wire SPIDimensions: 85 mm x 56 mmDisplay size: 57.288 mm x 38.192 mmDot pitch: 0.217 x 0.
217Resolution: 264 x 176Display colour: black, whiteGrey level: 2 fullUpdate time: 6 sEnergy reserve: 24 mW (typical)Standby power: 170°Included in deliveryDisplay HAT2 screwsDocumentation/downloadshttps://www.waveshare.com/wiki/2.7inch_e-Paper_HAT"